California Air Resources Board

• EMFAC2021 (v1.0.2) Public Release Notice - 5/2/22
• EMFAC2021 (v1.0.1) to (v1.0.2) Updates - 5/2/22
• EMFAC2021 Software Installation Package (v1.0.2) - 5/2/22
• EMFAC2021 (v1.0.1) Public Release Notice - 4/30/21
• EMFAC2021 Software Installation Package (v1.0.1) - 4/28/21
• EMFAC2021 (v1.0.0) to (v1.0.1) Updates - 4/28/21
• EMFAC2021 PL Handbook - 3/26/21
• EMFAC2021 Technical Document - 4/28/21
• PHEV Start Analysis Draft Memo - 3/26/21
• Heavy-Duty EMFAC Deterioration Rate Updates - 1/25/21
• EMFAC2021 (v1.0.0) Public Release Notice - 1/15/21
• EMFAC2021 Heavy-Duty Vehicle Accrual Rates with Addendum - 2/4/21
• EMFAC2021 User’s Guide

• EMFAC2017 Software Installation Package (v1.0.3)
• EMFAC2017 Update (v1.0.3) Public Release Notice
• EMFAC2017 Software Installation Package (v1.0.2)
• EMFAC2017 Update (v1.0.2) Public Release Notice
• EMFAC2017 User's Guide
• EMFAC2017 PL Handbook
• EMFAC2017 Technical Documentation

Updates from v1.0.2 to v1.0.3

• Fixed a bug in custom activity (SG) mode related to multi-year speed profiles entries
• Fixed a bug related to methane (CH4) speciation for gasoline vehicles

Updates from v1.0.1 to v1.0.2

• Off-Model Adjustment Factors for Recently-Adopted Regulations
• Off-Model Adjustment Factors for Recently-Adopted Regulations (Appendix)

• EMFAC2014 Software Installation Package (v1.0.7)
• EMFAC2014 Update (v1.0.7) Public Release Notice
• EMFAC2014 User's Guide
• EMFAC2014 Technical Documentation, PL Handbook
• Comprehensive Table of EMFAC Topics

Updates From v1.0.1 to v1.0.7